Machine for wire-tying bags.



R. R. MILLER.

MACHiNE FOR WIRE TYING BAGS.

APPLICATION FILED 050.26. 1914.

Patented Apr. 10, 1917.

N 5 SHEETS-SHEET I.

R; R. MILLER. MACHINE FOR WIRE TYING BAGS.

APPLICATION FILED DEC-26, i914.

Patented Apr. 10, 191?.

. 5 SHEETS-SHEET 2.

R. R. MILLER MACHINE FOR WIRE TYING BAGS.

APPLICATION FILED DEC-2 5. i914.

Patented Apr. 10, 1917.

5 SHEE-SHEET 3 R, R. MILLER. wmcmms mnwmfi mm; was. APPLICATION $11.20 M6426. m4.

Patentw Apr. 10, 191?.

Patented Apr. 10, 1917.

5 SHEETS-SHEET 5.

R. R. MILLER. MACHINE FOR WIRE TYING BAGS.

APPLICATION HLED DEC- 26, I914.

er ran charmer opinion "REGINALD It. MILLER, OF CHICAGO, ILLINOIS, ASSIGNOR TO BATES VALVE BAG- 430M PANY, OF CHICAGO, ELI-US$013, LA CORPORATION OF WEST VIRGIN MACHINE 13 013. WIBE-TYING BAGS.

rename. p c Letters Patent Patented Apr. 1th, it i'i.

Application filed December 26, 1914. Serial No. 8%,992. To all whom may concern." types of stock or standard parts. My inven- Be it known that I, REGINALD R. MILLER, i n is illustrated in the accompanying draw a citizen. of the United States, residing at l1gS,Wl'lere1n- Chicago, in the county of Cook and State Figurel is a plan View; a

of Illinois, have invented a certain new and Fig. 2 is rl side elevation viewed from the @Q useful Improvement in Machines for \Virel' gh d md S de of Fig. 1; Tying Bags, of which the following is a li ig. 3 i3 a side GlGVHtiOD ViBWQd from the specificatiom bottom of Fig. 1;

My invention relates to improvements in ig. is i SQ tiOD 111011;; the line e -ll: 0f

means for tying bags. in it I provide means Fig. 1; l my for puckering the bag, means for feeding Fig. 5 IS a detail ofthe driving mecl1aout wire to form a. tie, cutting it ofl", forming nism; a tie blank, feeding the. tie blank, bending it Fig: 6 is a Section on the line 66 of Fig. 1.. around the puckered neck of the bag and g; 7 is detail P1411 View of P of tha then twisting the tie to hold the bag tightly 5 B t l g me hanism; 7 in the puckered closed conditioin In a ma Fig. 8 is a section along the line S S of chine such as this, it will, oi course, be ob-' Fig- 7; vious that if this operation is to be success- F g- 9 s a detail plan view of the twistiul and economical it is necessary to proing ec unism; and I i duce the tied bag at a very rapid rate and, F g- 0 iS a plan View of the tie as i 75 therefore, I have provided means for operwould appear if it were discharged from the ating the machine to do all the different ma hine when f rmed instead of being imduties required as rapidly as the operator m i tely e t a Cl ar u d the bagran feed the bag to the machine and in my ike parts are indicated by like letters arrangement the operators act in feeding throughout the several figures. i an the bag starts the necessary machinery for A is-a rigid base for the entire machine forming the tie, feeding it, plurkering the which serves as a supporting means for bag, bending the tie around the bag, twistholding all the fixed parts in their proper. ing it and ejecting the tied. bag. It is, of relation. A, A are supporting brackets course, obvious that these different operprojecting upwardly from the base A. Proations are all going on simultaneously and jecting upwardly from these brackets are insuccessively and when the bag is fed in to wardly curved extensions A A" which supbe tied its being fed starts the machinery port guide blocks A", A. Forwardly pro and all 'the parts move so that the bag is jecting from these guide blocks are spring 5 puckered, a tie is fed in, a wire is fed in, guide bars 20, A carried by these guide \9() a piece cut off, a tie blank-formed, a tie blocks. it will be noted that there is a blank fed or bent around the puckered neck narrow passage between these guide bars of the bag and twisted tie and the bag A A extending into-the interior oi the ejected. A number of these movements are machiiie. A, A are cover plates overlying 40 simultaneous and a. number successive and the guide members A, A and slidable on 5 these \villbe pointed out in the specification. these guide members and held in position by One object, therefore, of my invention is to the cover plates A, A are two. puckering tie the bag with a wire tie, another object to jaw carriages l A. These puckering provide means for forming a tie and drawjaw carriages are separated one from the ing it tight around the neck of the bag-t0 other as are the cover plates A, A to form 55 springs and controls which are well-known close the bag. Still other objects of my ina continuation of the passage between the vention will develop in the specification. guide fingers. The invention is illustrated very diagram- B-is an oblong curved end pocket at the matically in the accompanying drawings inner end of the passage bounded partially 50 wherein is illustrated both a machine and a by the cover plates A, and partiallv bv process. The drawings show all the essen-' the bag holding plates B B "it will be tialfeatures of: my invention but since the noted that the, cover plates B and the matter is very complicated, I have omitted forward curved or quadricircular ends of such obvious constructions as clutches, the puokering jaws A, A are grooved at B, B and B 13*, respectively, so tlnit when are the parts are brought together in the positi'on shown in F 1g. 7 the aperture B is reduced to a circular aperture having slots or grooves peripherally arranged. about the cate with the cross heads.

C is a bell-crank lever mounted on the bracket C which projects from the base A. C is a spring tending to throw the bellcrank lever in a counter-clockwise direction. C is a link leading from the other end of the bell-crank lever ,to the cross head 13*. C is a sleeve integral with the latter arm of the bell-crank lever. In it is a cam contacting plunger outwardly thrust by the spring C. C is a cam in engagement with saidplunger C mounted on the main drive shaft C This shaft C is rotatable in a bearing C on the bracket G on the base A. C is a clutch housing interposed between the shaft and the power source. This hous ing contains any suitable clutch and throwoif mechanism which when actuated will cause the shaft to rotate once and then stop. This device is not specifically illustrated be cause it, of course, forms no part of my invention and may be of anysuitable wellknown type; The shaft C is driven from any suitable source of power not here shown and maybe discontinuously connected by any controlling means not here shown.

D is a bracket projecting from the guide blocks A". Pivoted in it is a latch lever D which projects across the path of the bag between the guide blocks A A and controls at its other end the link D which leads.

through any suitable transmission mechanism not here shown to control the clutch in the housing C for connecting and disconneeting the shaft C with a suitable source of power. D is a lever pivoted on the base A controlled by an eccentric link D* from the eccentric D". This lever as shown in Fig. 5 has its effective end in line with but below the level of the guide bars A A". It is adapted when rotated by the eccentric to swing up into a slot and feed the bag through the slot and force it into the. puckering opening B. This eccentric is driven from the main drive shaft from any. suitable means not here specifically shown or illustrated.

E is a wire which is supplied from any suitable source not here indicated which projects into the sliding head E which has a gripper jaw E for gripping and feeding the wire. The head E is slidably mounted on the guide E on the bracket E and is adapted to be recipi'oeated. from any suitable twisting heads toward the left.

' rod H source of power by an arm Ff" pivoted to a bevel cam E on C in unison with the operation of the machine and is connected thereto by'a link E. The jaw Ff is the ordinary type of one-way clutch jaw which feeds the wire when the jaw is moved forward and releases it when the jaw returns. E is a continuous wire and tie guide made up as shown in Figs. & and 8 of a plate E. filler plates E and a pair of cover plates l) to form a channel oblong in cross section with an opening in one side. This guide extends but not continuously from the effective forward limit of the wire feeding aw to the puckering jaw 13*.

F, F are wire bending heads each of them rotatably mounted in the bracket 1 and carrying the meshed pinions F", I one of which is in mesh with a segmental gear F rotatable on the shaft F adapted to be driven by the arm F which arm is in engagement with the cam F on the drive shaft C Each of these rotating wire bending beads has a central pin F and a bending pin F to one side thereof there being sullicient space between the two pins to permit passage of the wire. These twisting heads are, of course, right in line with the effective wire carrying portion of the guide E and mounted for reciprocation so that when they have bent the wire tie they may be withdrawn therefrom to permit its passage down toward the puckering jaws.

G is a. spring mounted'in the bracket F which tends normally to thrust each of the G, G are pressure buttons on the ends of the shaft carrying said twisting head and G is a yoke. engaging the said buttons. This arm is carried by the bell-crank lever G The set-screw G is mounted in the bell-crank lever G and projects toward the lug G on the sleeve G The sleeve G is connected to the knife block G in which is adjuston the opposed end of the bell-crank lever the twoknives operate to exert the cutting movement.

H is a bracket projecting from the clutch head H securing one end of a rod H H is a wire tie head carried on the end of said This head carries the latch H which projects into the wire guide E and is held thereagainst by the spring H. It is limited in its rotary movement with] respect to the head in engagement with the head H. On the front end of the latch ll and slightly removed from its outer edge is a catch H. The bounded portion or" the latch is adapted to engage and push the ix ire tie through the guide slot but after the latch gets beyond the end. of the slot the wire which by that time hasbeen pushed around the bag as it lies in the put-luring; jaw will spring out being no longer held by the guide and will then be further pushed by the front end .ot' the latch where it engages it and the part ll which part prevents the wire tie coming too tar along the wire latch. v

l is,a tie twisting or bag-tying head. it consists of a shaft as indicated. rotatably mounted on the bearingvl. having at its rear end a wheel l driven by the sprocket chain 1 which is driven by the ma n driving shaft in any suitable means not here shown. The head I has two tie engaging jaws. The lower one 1" is fixed on the shaft. the upper one I is carried on the pivoted arm 1 This arm 1 has a contact pin i at its rear end and in engagement with this pin 1* is a wedge 1" adapted to be thrust forward against the spring 1 contained within the hearing I in the sliding sleeve 1. 1 is a bell-crank lever having an engagement ball I in engagement with the sleeve 1 at one end and a pin l in engagement with the cam 1 at the other end onthe shaft C so that a rotation of that shat't will result in drawing the edge I away from the pin or ball I permitting the spring 1 to spread the two jaws open in the position which they normally occupy except when engaging the twisting tie.

It will be evident that while I. have shown inimy drawings an operative device. still many changes might be made both in size, shape and arrangement of parts without dcparting from the spirit of my invention and 1 wish. therefore. that my drawings be regarded as in a sense diagrammatic,

The use and operation of my invention are as follows 1- The operator stands adjacent the bag guide forks and feeds each individual bag separately and successively toward themaghine between these two forks. ills he feeds the bag in, the latch arm is moved by the bag] to the dotted position shown and as soon as a bag has passed on beyond the end of the latch arm it snaps back to the position shown in full lines. This operates the clutch and throws on the power. The feed finger or arm then carries the bag torwa rd into and between thepuckering, jaws lced ingr it from the guide member into these jaws. It will be noted that in the position shown the jaws are open and there is a substantially parabolic hole in which the bag found. The sliding; jaw then approaclws the first jaw until the bag is compressed or pucl zcrcd. the parts assuming substantially the position shown in Fig. 7 the has being held then in a round hole or opening. Meanwhile the Wire feeding mechanism will have fed out a length of wire to the cut,

ting knife and this length or wire stopping as it does ust short of the cutting knife and passing through the lirst twisting; head, will be twisted into the shape shown at the 'ight hand end of Fig. 10. The partially formed tic thus resulting will then be fed on the proper distance. it will then be cut oil from the wire and on the first movement of the, two twisting heads.- for the operate simultancouslv, the rear end of the cutoff piece ol wire will be bent into the shape shown in Fig. 10. the front end of the next piece of wire bent to'thc shape shown in the left-hand cud oi Fig. ll). This tie blank is then led on through the passage shown in trated in Fig. 3. being operated by the cam arrangement therc shown. then grip the two crossed ends of the tie and. upon th ir r t tion twist these two ends together to tighten the tie on the puckered ban.

it will be noted that the bag! as it passes through the machine'is lirst fed by the opcrator to the feeding point. It is then fed into the puckering jaw by one movement. the puckering jaw is then contracted to pucker the but: by another movement and the bag: is later released bv the withdrawal movement of the puckering; jaw. thus there are three movements effecting the. position of the bag. During this time. however. a large number of movements take place eil cctingj the wire 'tic. Starting with the wire end which terminates at the cutting knil c, the first movement is the bending: of the front end oi the blank. the second movement the l'l'ccding forward o'ithc wire. the third movement its cutting oil'. the fourth movement the bending ol the" rear' end of the wire which is simultaneous with the bending" of the front end of the following; wire. the li't'th movement the feeding forwa rd ol' the wire blank and its threading or encircling about the puckered neck of the ba noted that the wire is cut off and a blank bag tie formed all before the wire is fed and bent about the puckered part of the bag.

though it is quite obvious that these steps might be omitted in my process and that the wire might be fed direct around the bag either by pushing from behind as indicated or by-any-other suitable means so long as the ultimate result is a loop which encircles the neck of the bag and which may then be tightened. by twisting or otherwise compressing it about the bag to tie it.

I claim:

1. Ina bag tying machine, means for puckering the open mouth of a bagymeans vfor iteedln' out a wire and tormm a head thereon, means for feeding out andcutting ofl' the wire and forming a head on the other end thereof. means for feeding the blank thus formed to and around the puckered mouth of the bag crossing said ends and twisting them one on the other to tighten them on the. bag.

2. In a bag tying machine, means for puckering the open mouth of a bag, means for feeding out a wire and forming a head thereon, means for feeding out and cutting ofl the wire and forming a head on the other end thereof, means for feeding the blank thus for ed to and around the puckered .mouthlof the bag, and twisting the two ends of the blank one on the other to tighten the tie on the baQ.

In a bag tying machine, means for puckering the neck o1 the bag, operating means for feeding wire, cutting it oft, forming it, feeding it around the puckered neck of the bag and twisting it to tighten it, all by successive steps,

4. In a bag tying machine, a guide, means for puckering the neck of the bag, operating means for feeding wire, cutting it ofl', torm- -ing it, feeding itaround the puckered neck of the bag and twisting it to tighten it, all

- by successive steps, and guiding means.

5. In a bag tying machine, a guide, means for puckering the neclcot the bag, operating means for feeding wire, cutting it on", forming it, feeding it a guide means for around the puckered neck of the bag and twisting it to tighten it, all by successive steps, and driving means, and means responsive to the passage of the bag along the guide for connecting said driving means with the operating means.

(i. In a bagtying machine, a guide, means for puckering the neck of the bag, operating means for feeding wire, cutting it off, forming it, feeding it around the puckered neck of the bag and twisting it to lighten it, all by'succe sive steps, and driving means, and means responsive to the passage of the bag along the guide for connecting said driving means with the operating means, and automatic means for disconnecting them after each successive step.

7. In a bag tyingmachine, means for puckering the neck of the bag, operating means for feeding wire, cutting it off, forming it, feeding it around the and twisting it to tighten it all by successive steps, the bag puckering means comprising positively feeding the bag on the guide and a pocket in which the bag is fed from the guide, and means for compressing the bag into said pocket to complete the puckering act.

8. In a bag tying machine, means. for puckering the neck of the bag, said means comprisingdwo parallel guides and an open pocket, means for positively feeding the bag along between the guides into the pocket and there con'ipressing the neck of the bag to packer-it.

9. In a bag tying machine, means for puckering the neck of the bag, operating means for feeding wire, cutting it off, forming it. feeding it around the puckered neck of. the bag and twisting it to tighten it all by successive steps, the bag puckering means comprising a guide means for positively feeding the bag on the guide, and a pocket in. whiclrthe bag is fed from the guide and means for compressing into said pocket to REGHNALD R. MILLER.

Witnesses:

Bessie S. Rice, MINNIE M. Lmnnmm. 

